Food Media in Small Quantities?

Hi. Due to renovations, our usual fly kitchen is unavailable for making
large batches of media. Instead, it appears we will need to make smaller
batches on a rangetop in the interim. None of the recipes in appendix N of
the grey book seem to have the same ingredients. My questions are these:
1) Has anyone any advice about reducing recipes? (Does it work, or are there
adjustments I will need to make?)
2) Does anyone have a recipe on file for small batches (~2-4 L) of food with
the following ingredients: (percentages are from the large recipe)
10.0% sucrose
6.0% yellow cornmeal
3.4% brewer's yeast
1.0% agar
1.6 vol Tegosept in EtOH
I would like to be sure this food is *right*, since I am culturing other
species than melanogaster, and they tend to prefer fresh food, made well.
If this information is available online somewhere in flybase, I apologize for
bothering you. I looked and didn't see it anywhere.
Thanks very much.
anja